This was the reply to the tweebie post, from the man who invented Bet Angel and has done very well from it:

"This is why I recommended Betdaq during Cheltenham, you can still scalp that with ease. Betfair is a whole different ball game on the scalping front"

So from that comment I can only assume that Betfair is now saturated with 'smarties' and they've cruelled their own edge, hence the need to exploit lesser exchange platforms?

But you'll know what'll happen, don't you?